Mitchell records the amount of time a toy car takes to travel down a ramp one time for each of four slope angles. His lab partner Sarah suggests that he run the same set of trials 2 more times.
What arguments should sarah use to support her suggestion? Check all that apply
-More trials will prove the results
-more trials will reduce mistakes
-more trials will guarantee correct results
-more trials will increase confidence in results
-more trials will help identify other possible solutions

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes